TY  - JOUR
A1  - Raatschen, Hans-Jürgen
A1  - Holzner, M.
A1  - Borrmann, M.
A1  - Pfrang, W.
T1  - Numerische Simulation von Umformprozessen mit dem expliziten FE-Programm UFO-3D
Y1  - 1991
N1  - Konferenz-Einzelbericht : FEM '91, International FEM-Congress, IKO Software Service, Baden Baden,  D, 18.-19.11.1991
SP  - 91
EP  - 105
ER  - 
TY  - JOUR
A1  - Nguyen, N.-H.
A1  - Raatschen, Hans-Jürgen
A1  - Staat, Manfred
T1  - A hyperelastic model of biological tissue materials in tubular organs
Y1  - 2010
N1  - ECCM 2010, IV European Conference on Computational Mechanics, Paris, France, May 16-21, 2010.
SP  - 1
EP  - 12
ER  - 
TY  - JOUR
A1  - Raatschen, Hans-Jürgen
T1  - Fokussierung von Spannungswellen in einer krummlinig berandeten Scheibe
JF  - ZAMM : Zeitschrift für Angewandte Mathematik und Mechanik
Y1  - 1987
SN  - 1521-4001
N1  - Artikel umfasst die Seiten 11 und 12 des 30-Seiten-langen PDFs der Online-Ausgabe.
VL  - 67
IS  - 4
SP  - T230
EP  - T231
ER  - 
TY  - JOUR
A1  - Raatschen, Hans-Jürgen
T1  - Ingenieurstudium Hundert Jahre : von der Königlichen Höheren Maschinenbauschule Aachen zu den Ingenieurfachbereichen der Fachhochschule
JF  - Fachblatt
Y1  - 2003
VL  - 2003
IS  - 1
SP  - 28
EP  - 29
ER  - 
TY  - JOUR
A1  - Kilic, S. A.
A1  - Raatschen, Hans-Jürgen
A1  - Körfgen, B.
A1  - Apaydin, N. M.
A1  - Astaneh-Asl, A.
T1  - FE Model of the Fatih Sultan Mehmet Suspension Bridge Using Thin Shell Finite Elements
JF  - Arabian Journal for Science and Engineering
N2  - This paper presents the results of an eigenvalue analysis of the Fatih Sultan Mehmet Bridge. A high-resolution finite element model was created directly from the available design documents. All physical properties of the structural components were included in detail, so no calibration to the measured data was necessary. The deck and towers were modeled with shell elements. A nonlinear static analysis was performed before the eigenvalue calculation. The calculated natural frequencies and corresponding mode shapes showed good agreement with the available measured ambient vibration data. The calculation of the effective modal mass showed that nine modes had single contributions higher than 5 % of the total mass. They were in a frequency range up to 1.2 Hz. The comparison of the results for the torsional modes especially demonstrated the advantage of using thin shell finite elements over the beam modeling approach.
KW  - Suspension bridge
KW  - 3D nonlinear finite element model
KW  - Thin shell finite elements
KW  - Natural frequency
KW  - Effective modal mass
Y1  - 2017
U6  - http://dx.doi.org/10.1007/s13369-016-2316-y
SN  - 2191-4281
VL  - 42
IS  - 3
SP  - 1103
EP  - 1116
PB  - Springer Nature
ER  -